package cn.idietrade.idietradeusermodule8004.service;

import cn.idietrade.common.pojo.SecondConcern;

import java.util.List;

public interface SecondConcernService {
    //根据userId返回关注列表
    List<SecondConcern> getSecondConcern(Integer userId);

    //添加关注
    Integer addConcern(SecondConcern concern);

    //取消关注
    Integer delConcern(SecondConcern concern);
}
